Pazyn.StartupTasks

Pazyn.Startuptasks

Pazyn.StartupTasks是在應用程序啟動時用於運行任務的庫。例如，您可以遷移數據庫，驗證配置，同步權限或填充緩存。可以將啟動任務分別配置為以兩種模式工作：阻止和非阻止。阻止意味著所有請求都被阻止，直到任務完成為止。用Medod標記的第二種模式防護路線RequireStartupTask生成503 HTTP響應代碼，直到任務完成為止。

最小的工作示例

 public class SillyStartupTask : IStartupTask
{
    public Task<Boolean> Run(CancellationToken cancellationToken) => Task.FromResult(true);
}

public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddHealthChecks()
            .AddStartupTasks();

        services.AddStartupTasks()
            .AddStartupTask<SillyStartupTask>();
    }

    public void Configure(IApplicationBuilder app, IConfiguration configuration)
    {
        app.UseRouting();
        app.UseStartupTasks();
        app.UseEndpoints(endpoints =>
        {
            endpoints.MapHealthChecks("/health");

            endpoints.MapGet("/", context => context.Response.WriteAsync("Hello World!"))
                .RequireStartupTask();
        });
    }
}

致謝

這項工作的啟發是：

• 安德魯·洛克（Andrew Lock）和他的博客

查看他的博客文章：

1. https://andrewlock.net/running-async-tasks-on-app-startup-in-asp-net-core-part-1/
2. https://andrewlock.net/running-async-tasks-on-app-startup-in-asp-net-core-part-2/
3. https://andrewlock.net/running-ashync-tasks-on-app-startup-in-asp-net-core-part-part-3-feedback/
4. https://andrewlock.net/running-ashync-tasks-on-app-startup-in-asp-net-core-part-part-4-- used-used-health-checks/
5. https://andrewlock.net/running-ashync-tasks-on-app-startup-in-asp-net-core-3/